/* * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009 * The President and Fellows of Harvard College. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * sbrk */ #include <sys/types.h> #include <sys/stat.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <errno.h> #include <err.h> #include "config.h" #include "test.h" static int try_sbrk(long val) { void *rv; rv = sbrk(val); if (rv==(void *)-1) { return errno; } return 0; } static void enforce_sbrk(long val, const char *desc, int err) { int e; e = try_sbrk(val); if (e != err && e==0) { warnx("FAILURE: sbrk(%s): no error", desc); return; } if (e != err) { errno = e; warn("FAILURE: sbrk(%s): wrong error", desc); return; } warnx("passed: sbrk(%s)", desc); } static void sbrk_bigpos(void) { enforce_sbrk(4096*1024*256, "huge positive", ENOMEM); } static void sbrk_bigneg(void) { enforce_sbrk(-4096*1024*256, "huge negative", EINVAL); } static void sbrk_neg(void) { enforce_sbrk(-8192, "too-large negative", EINVAL); } static void sbrk_unalignedpos(void) { switch (try_sbrk(17)) { case 0: case EINVAL: warnx("passed: sbrk(unaligned positive)"); break; default: warn("FAILURE: sbrk(unaligned positive): wrong error"); break; } } static void sbrk_unalignedneg(void) { switch (try_sbrk(-17)) { case 0: case EINVAL: warnx("passed: sbrk(unaligned negative)"); break; default: warn("FAILURE: sbrk(unaligned negative): wrong error"); break; } } void test_sbrk(void) { sbrk_neg(); sbrk_bigpos(); sbrk_bigneg(); sbrk_unalignedpos(); sbrk_unalignedneg(); }